I just realized the following:
// Call the current user info global $current_user; // Add a capability // and set the 2nd argument ($grant) to false $current_user->add_cap( 'some_cap', false );
Now I've successfully added a capability to the user, but denied her/him the access to this capability.
If I now check with
$current_user->has_cap( 'some_cap' ); I'd get a
true in return. The same goes for
current_user_can( 'some_cap' ); as this is only a wrapper for the has_cap functions arguments.
Q: Where is the 2nd argument used? Did I get something wrong?